filter

package

v1.0.7 Latest Latest Go to latest Published: Mar 25, 2023 License: MIT Imports: 7 Imported by: 0

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Repository

github.com/fairhive-labs/go-pixelart

Links

Open Source Insights

Documentation ¶

Index ¶

Constants
Variables
func CGA16(c color.Color) color.Color
func CGA2(c color.Color) (n color.Color)
func CGA4(c color.Color) (n color.Color)
func ConstrastGrayColor(c color.Color, m uint8, p predicate) color.Color
func DarkContrast(c color.Color) color.Color
func DarkGrayColor(c color.Color) color.Color
func EGA(c color.Color) color.Color
func Gauss(s int) (*kernel, error)
func GrayColor(c color.Color) color.Color
func Identity(c color.Color) color.Color
func InvertColor(c color.Color) color.Color
func LightGrayColor(c color.Color) color.Color
func LongEdge(bx, by int) bool
func NewBasicFilter(transform TransformColor) *basicFilter
func NewConvolutionFilter(k *kernel, pre, post TransformColor) *convolutionFilter
func NewKernel(s int, m matrix, f int) (*kernel, error)
func NewPixelFilter(stripes int, edge Edge, transform TransformColor) *pixelFilter
func ShortEdge(bx, by int) bool
func VGA(c color.Color) color.Color
func XRayColor(c color.Color) color.Color
type Block
type Edge
type Filter
type TransformColor

Constants ¶

View Source

const (
	Min int = 3
)

Variables ¶

View Source

var (
	Identity_3x3 = kernel{
		3,
		[]int{0, 0, 0, 0, 1, 0, 0, 0, 0},
		1,
	}

	RidgeDetection_3x3_soft = kernel{
		3,
		[]int{0, -1, 0, -1, 4, -1, 0, -1, 0},
		1,
	}

	RidgeDetection_3x3_hard = kernel{
		3,
		[]int{-1, -1, -1, -1, 8, -1, -1, -1, -1},
		1,
	}

	Sharpen_3x3 = kernel{
		3,
		[]int{0, -1, 0, -1, 5, -1, 0, -1, 0},
		1,
	}

	Gauss_3x3 = kernel{
		3,
		[]int{1, 1, 1, 1, 1, 1, 1, 1, 1},
		9,
	}
)

View Source

var (
	CGAPalettes map[int]color.Palette
)

Functions ¶

func CGA16 ¶

func CGA16(c color.Color) color.Color

func CGA2 ¶

func CGA2(c color.Color) (n color.Color)

func CGA4 ¶

func CGA4(c color.Color) (n color.Color)

func ConstrastGrayColor ¶

func ConstrastGrayColor(c color.Color, m uint8, p predicate) color.Color

func DarkContrast ¶

func DarkContrast(c color.Color) color.Color

func DarkGrayColor ¶

func DarkGrayColor(c color.Color) color.Color

func EGA ¶

func EGA(c color.Color) color.Color

func Gauss ¶

func Gauss(s int) (*kernel, error)

func GrayColor ¶

func GrayColor(c color.Color) color.Color

func Identity ¶

func Identity(c color.Color) color.Color

func InvertColor ¶

func InvertColor(c color.Color) color.Color

func LightGrayColor ¶

func LightGrayColor(c color.Color) color.Color

func LongEdge ¶

func LongEdge(bx, by int) bool

func NewBasicFilter ¶

func NewBasicFilter(transform TransformColor) *basicFilter

func NewConvolutionFilter ¶

func NewConvolutionFilter(k *kernel, pre, post TransformColor) *convolutionFilter

func NewKernel ¶

func NewKernel(s int, m matrix, f int) (*kernel, error)

func NewPixelFilter ¶

func NewPixelFilter(stripes int, edge Edge, transform TransformColor) *pixelFilter

func ShortEdge ¶

func ShortEdge(bx, by int) bool

func VGA ¶

func VGA(c color.Color) color.Color

func XRayColor ¶

func XRayColor(c color.Color) color.Color

Types ¶

type Block ¶

type Block struct {
	// contains filtered or unexported fields
}

type Edge ¶

type Edge func(bx, by int) bool

Edge is a Predicate function

type Filter ¶

type Filter interface {
	//Process image transformation from source src to destination dst
	Process(src *image.Image) *image.RGBA
}

type TransformColor ¶

type TransformColor func(color.Color) color.Color

Source Files ¶

View all Source files

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